Applicator device for a cosmetic product

ABSTRACT

An applicator device for a cosmetic product including a stem surmounted by a one piece applicator body, the body including a proximal part associated with the stem and a distal part opposite from said proximal part in a longitudinal direction, the distal and proximal parts being linked by a bridge formed in recess in the applicator body, wherein the distal part includes a rounded geometry having an outer diameter and the proximal part includes at least a protruding zone having an outer dimension which is bigger than the outer diameter of the distal part.

FIELD OF THE INVENTION

The invention relates to an applicator device for a cosmetic product as well as an applicator unit comprising such applicator device. In particular, the product is a cosmetic for the lips, notably a lip colored pasty product, or a cosmetic for the eyes or another body part.

BACKGROUND OF THE INVENTION

For the application of a product on the lips, it is known to use an applicator unit comprising a receptacle for the product and an applicator device comprising a stem surmounted by a one piece applicator body. The applicator device is removably mounted onto the receptacle to put the applicator body in contact with the product into said receptacle. Thus, it is possible to sample the product onto the applicator body and to apply said sample by brushing said applicator body onto the lips.

In addition, the applicator unit can comprise a wiper to wipe off excess product when removing the applicator device from the receptacle. In particular, the wiper can have a soft wiping rim defining therein a central opening in which the applicator device is able to slide.

SUMMARY OF THE INVENTION

It is an object of the invention to propose an applicator device able to sample a quantity of product which is sufficient to put make-up on the whole lips, said applicator device being also configured so as to improve the precision of the application of said sample on the lips. In addition, the application device according to the invention provides a very satisfactory massage effect of the lips upon the application of the sample.

To that end, according to a first aspect, the invention proposes an applicator device for a cosmetic product comprising a stem surmounted by a one piece applicator body, said body comprising a proximal part associated with the stem and a distal part opposite from said proximal part in a longitudinal direction, said distal and proximal parts being linked by a bridge formed in recess in the applicator body, wherein the distal part comprises a rounded geometry having an outer diameter, the proximal part comprising at least a protruding zone having an outer dimension which is bigger than the outer diameter of the distal part.

It is a further object of the invention to propose an applicator unit to wipe off excess product when removing the above presented applicator device from the receptacle.

To that end, according to a second aspect, the invention proposes an applicator unit for a cosmetic product comprising a receptacle for said product and an applicator device comprising a stem surmounted by an one piece applicator body, said body comprising a proximal part associated with the stem and a distal part opposite from said proximal part in a longitudinal direction, said distal and proximal parts being linked by a bridge formed in recess in the applicator body, wherein the distal part comprises a rounded geometry having an outer diameter, the proximal part comprising at least a protruding zone having an outer dimension which is bigger than the outer diameter of the distal part, wherein the applicator device is removably mounted onto the receptacle to put the applicator body in contact with the product into said receptacle, the applicator unit further comprising a wiper to wipe off excess product when removing the applicator device from the receptacle, said wiper having a soft wiping rim defining therein a central opening in which the applicator device is able to slide, wherein the dimension of said central opening is comprised between the outer diameter of the distal part and the outer dimension of the protruding zone in order to wipe off said protruding zone but not said distal part.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a longitudinal section view of an applicator unit according to an embodiment of the invention, wherein the applicator device is mounted onto the receptacle with the applicator body in contact with the product into said receptacle.

FIG. 2 is a perspective view of the applicator body represented on FIG. 1, FIGS. 2 a and 2 b being respectively AA and BB transversal section views of FIG. 2.

FIG. 3 is a longitudinal section view of the wiper represented on FIG. 1, FIG. 3 a being an elevated view of said wiper.

FIGS. 4 a to 4 d represent four sequences for the removing of the applicator device from the receptacle.

FIG. 5 represents the applicator body with the sample, FIGS. 5 b to 5 g being respectively BB, CC, DD, EE, FF and GG transversal section views of FIG. 5.

FIGS. 6 a to 6 e represent five other embodiments for the applicator device according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 represents an applicator unit 1 for a lip product 2 comprising a receptacle 3 for said product, notably for a cosmetic for the lips such as a more or less viscous lip colored pasty product. The receptacle 3 comprises a neck 4 on which an applicator device 5 is removably mounted.

In the represented embodiment, the applicator device 5 comprises a stem 6 carrying on both sides an applicator body 7 and a cap 8 for the receptacle 3 which is disposed opposite to said applicator body. Both the cap 8 and the neck 4 are threaded in order to permit the mounting of the applicator device 5 onto the receptacle 3 to put the applicator body 7 in contact with the product 2 into said receptacle.

The applicator unit 1 further comprises a wiper 9 which is mounted in the neck 4, said wiper being able to wipe off excess product when removing the applicator device 5 from the receptacle 3. The wiper 9 has a body 10 presenting a outer surface fitted in the neck 4, said body being surmounted by a annular exterior edge 11 adjacent to a sealing ring 12 which cooperates within the neck 4 for the mounting of said wiper onto the recipient 3.

At the bottom of its body 10, the wiper 9 has a soft wiping rim 13 extending inwardly, said rim defining therein a central opening 14 in which the applicator device 5 is able to slide upon removing. In one example, the wiper 9 is manufactured by molding of a soft plastic material such silicon, butyl or nitrile rubber material.

Thus, after removing the applicator device 5, a sample of product is disposed onto the applicator body 7, said sample being then possibly applied on the lips by brushing said body onto them. To improve the comfort of said brushing, the applicator body 7 can be manufactured by molding of a soft plastic material. According to embodiments, at least a portion of the outer surface of the applicator body 7 can be coated with fibers and/or longitudinal ribs can be formed on at least a portion of said outer surface.

As represented, the stem 6 is surmounted by a one piece applicator body 7 comprising a proximal part associated with the stem 6 and a distal part 15 opposite from said proximal part in a longitudinal direction. Each one of the distal 15 and proximal part presents an outer surface to brush on the lips in order to apply the sample. In the represented embodiment, the proximal part presents a base 16 which is inserted in the stem 6 to associate the applicator body 7 to said stem.

In the application body 7, the distal 15 and proximal parts are linked by a bridge 17 formed in recess in said applicator body, the outer dimension of said bridge being then smaller than both the outer dimensions of the distal 15 and proximal parts. In particular, the bridge 17 forms a groove around it, said groove being disposed between the distal 15 and the proximal part.

The distal part 15 comprises a rounded geometry having an outer diameter, notably the geometry of said distal part can be spherical, eventually slightly deformed. The proximal part comprises at least a protruding zone having an outer diameter which is bigger than the outer diameter of the distal part 15. Furthermore, the dimension of the central opening 14 of the wiper 9 is comprised between the outer diameter of the distal part 15 and the outer dimension of the protruding zone in order to wipe off said protruding zone but not said distal part.

Thus, due to its small diameter, the rounded distal part 15 permits to provide a great precision for the application of the sample disposed on it and the difference between the outer dimensions of the distal 15 and proximal parts permits to improve the volume of the sample. It is then possible to combine the disposition of a great quantity of product on the lips with the finesse of the outlines of the application of said product onto the lips.

Product is also sampled around the bridge 17 to form a kind of reservoir for the sample. In addition, the bridge 17 permits elastic displacements of the distal part 15 as regards the proximal part to improve the comfort and provide a very satisfactory massage effect of the lips. In particular, the elastic displacements provide a bending of the distal part 15 upon leaning it on the lips.

Those effects can be achieved with a bridge 17 presenting a longitudinal dimension which is bigger than 10% of the outer diameter of the distal part 15 and/or an outer dimension which is smaller than 60% of said outer diameter.

Furthermore, the bridge 17 can presents an elliptical transversal section to provide a differential effort to bend the distal part 15 in function of the position of the support of said distal part on the lips. Thus, the user can rotate the applicator device, by means of the cap 8, to obtain the desired bending effect, without changing the application surface since the distal part 15 is rounded.

In addition, the softness of the material of the applicator body 7 can be chosen according to the bending effect desired, as well as to conserve a sufficient longitudinal rigidity of said applicator body in order to keep the precision of the application, notably of the outlines by means of the distal part 15. As examples, thermoplastic polyester-polyurethane or thermoplastic ethylene-methacrylic acid copolymer are suitable to manufacture the applicator body 7.

The proximal part can comprise geometries, notably rounded geometries, linked by bridges formed in recess in the applicator body 7, the outer dimension of said geometries decreasing from the stem to the distal part. In this embodiment, each bridge forms a reservoir for the sample and a flexibility area between the geometries. In addition, the application of the sample can then be done by either one of said geometries according to the wishes of the user. According to FIG. 6 a, the proximal part comprises two ovoid shaped geometries 18 a, 18 b linked by a bridge 19 formed in recess in the applicator body 7.

In relation with FIGS. 1 and 2, we describe below an applicator body 7 comprising three successive spherical geometries 15, 20, 21 linked by two bridges 17, 22, the outer diameter of said geometries decreasing from the stem 6 to the distal part 15. As shown on FIGS. 2 a and 2 b, each bridge 17, 22 presents an elliptical transversal section, the dimension of the proximal bridge 22 being bigger than the dimension of the distal bridge 17.

As a numerical example, the main dimensions of the represented application body can be:

-   -   outer diameter of the proximal geometry 21: 5.0 mm;     -   dimensions of the proximal bridge 22: 2.0 mm×1.2 mm×0.4 mm;     -   outer diameter of the central geometry 20: 3.9 mm;     -   dimensions of the distal bridge 17: 1.4 mm×1.0 mm×0.4 mm;     -   outer diameter of the distal geometry 15: 2.9 mm.

This applicator body 7 can be used in combination with a wiper 9 as represented on FIGS. 3, wherein the wiping rim 13 has a serrated geometry comprising teeth 23 spaced by holes 24. In this embodiment, the central opening 14 comprises two dimensions for the wiping: the outer dimension D of the teeth 23 and the inner dimension d of said teeth, said outer dimension being comprised between the outer diameter of the distal part 15 and the outer diameter of the proximal geometry 21 in order to wipe off said proximal geometry. In the above numerical example, the outer diameter D can be 4.4 mm and the inner diameter d 3.7 mm.

In relation with FIGS. 4 and 5, the applicator body 7 first gets out the product 2 with a quantity of product around it (FIG. 4 a). As the stem 6 also dips into the product 2, the dimension of the central opening 14 is smaller than the outer dimension of the stem 6 in order to completely wipe off the product 2 from said stem (FIG. 5 g). In addition, the outer dimension of the stem 6 is bigger than the outer diameter of the distal part 15 and similar to the outer dimension of the proximal geometry 21.

On FIG. 4 b, as for the stem 6, the proximal geometry 21 has been completely wiped off (FIG. 5 f) since its outer diameter is greater than the outer dimension D of the teeth 23, notably said outer dimension and said outer diameter can be similar, that is to say different for less than 10%. A sample of product is not wiped off around the proximal bridge 22 (FIG. 5 e) in order to provide a serrated layer 25 of product to apply on the lips.

In addition, the inner dimension d of the teeth 23 is similar to the outer diameter of the central geometry 20 in order to wipe off partially said central geometry (FIG. 5 d). In particular, upon sliding of the central geometry 20 into the wiping rim 13, ribs 26 of product are disposed around the central geometry 20 through the spaces 24 formed between the teeth 23.

On FIG. 4 c, a serrated layer 27 of product is disposed around the distal bridge 17 (FIG. 5 c) and around the distal geometry 15 which is not wiped since its diameter is smaller than the inner diameter d of the teeth 23 (FIG. 5 b). Thus, as shown on FIGS. 4 d and 5, a sample of product is disposed around the applicator body 7 in order to be applied onto the lips.

In relation with FIGS. 6 b to 6 e, the application body 7 can have a proximal part comprising, from the stem 6 to the bridge 17, a diverging zone, a central zone and a converging zone, the protruding zone being formed on the central zone. Indeed, those embodiments also permit to combine the sampling of a great quantity of product with the precision of the application of said sample on the lips.

On FIGS. 6 b, 6 c and 6 e, the proximal part presents an ovoid shaped geometry 28. The outer surface of this geometry can present edges as shown on FIG. 6 b, can be slick as shown on FIG. 6 e or can present longitudinal ribs as shown on FIG. 6 c.

According to FIG. 6 d, the proximal part can also present a diverging conical zone 29 and a converging conical zone 30, the central zone being formed on the junction base 31 of those conical zones which presents then the biggest outer dimension. 

1. An applicator device for a cosmetic product comprising a stem surmounted by a one piece applicator body, said body comprising a proximal part associated with the stem and a distal part opposite from said proximal part in a longitudinal direction, said distal and proximal parts being linked by a bridge formed in recess in the applicator body, wherein the distal part comprises a rounded geometry having an outer diameter, the proximal part comprising at least a protruding zone having an outer dimension which is bigger than the outer diameter of the distal part.
 2. The applicator device according to claim 1, wherein the applicator body is manufactured by molding of a soft plastic material.
 3. The applicator device according to claim 1, wherein the bridge permits elastic displacements of the distal part as regards the proximal part.
 4. The applicator device according to claim 3, wherein the bridge presents an elliptical transversal section.
 5. The applicator device according to claim 1, wherein the geometry of the distal part is spherical.
 6. The applicator device according to claim 1, wherein the proximal part comprises geometries linked by bridges formed in recess in the applicator body, the outer dimension of said geometries decreasing from the stem to the distal part.
 7. The applicator according to claim 6, wherein the geometries of the proximal part are rounded.
 8. The applicator device according to claim 7, wherein the applicator body comprises three rounded geometries linked by two bridges, the outer diameter of said geometries decreasing from the stem to the distal part.
 9. The applicator device according to claim 1, wherein the proximal part comprises, from the stem to the bridge, a diverging zone, a central zone and a converging zone, the protruding zone being formed on the central zone.
 10. The applicator device according to claim 1, wherein the stem has an outer dimension which is bigger than the outer diameter of the distal part.
 11. The applicator device according to claim 1, wherein the stem has an outer dimension which is similar to the outer dimension of the protruding zone.
 12. The applicator body according to claim 1, wherein the proximal part presents a base which is inserted in the stem to associate the applicator body to said stem.
 13. An applicator unit for a cosmetic product comprising a receptacle for said product and an applicator device comprising a stem surmounted by a one piece applicator body, said body comprising a proximal part associated with the stem and a distal part opposite from said proximal part in a longitudinal direction, said distal and proximal parts being linked by a bridge formed in recess in the applicator body, wherein the distal part comprises a rounded geometry having an outer diameter, the proximal part comprising at least a protruding zone having an outer dimension which is bigger than the outer diameter of the distal part, wherein the applicator device is removably mounted onto the receptacle to put the applicator body in contact with the product into said receptacle, the applicator unit further comprising a wiper to wipe off excess product when removing the applicator device from the receptacle, said wiper having a soft wiping rim defining therein a central opening in which the applicator device is able to slide, wherein the wiping dimension of said central opening is comprised between the outer diameter of the distal part and the outer dimension of the protruding zone in order to wipe off said protruding zone but not said distal part.
 14. The applicator unit according to claim 13, wherein the wiping dimension of the central opening is similar to the outer dimension of the protruding zone.
 15. The applicator unit according to claim 13, wherein the stem is associated to a cap for the receptacle, said cap being disposed opposite to the applicator body.
 16. The applicator unit according to claim 13, wherein the wiper rim has a serrated geometry comprising teeth spaced by holes, the wiping dimension defined by the outer dimension of the teeth being comprised between the outer diameter of the distal part and the outer dimension of the protruding zone.
 17. The applicator unit according to claim 16, wherein the applicator body comprises a zone having an outer dimension which is similar to the inner dimension of the teeth.
 18. The applicator unit according to claim 13, wherein the stem has an outer dimension which is bigger than the dimension of the central opening. 